Stay for casement windows



0. DONALD. STAY FOR CASEMENT WINDOWS. APPLICATION FILED .IULYI4, I921.

l gg gg Patented; July 11,1922

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DONALD DONALD, OF SYDNEY, NEW SOUTH WALES, AUSTRALIA.

STAY FOR CASEMENT WINDOWS.

Application filed July 14,

To all whom it may concern:

Be it known that I, DONALD DONALD, a subject of the King of Great Britain and Ireland, residing at Glenmore Road, Rushcutters Bay, Sydney, in the State of New South lVa-les, Commonwealth of Australia, have invented certain new and useful Improvements in a Stay for Casement Windows, of which the following is a specification.

This invention relates to an adjustable stay and lock for casement windows, and the object of the invention is to provide a cheaply constructed, strong and easily manipulated stay whereby a casement window can be locked in the closed position or securely held in the open position at any desired angle.

The invention comprises an arm loosely pivoted at one end to a bracket secured to the window frame and having at its free end a downwardly projecting tongue adapted to engage holes in a channel-way secured to the casement window, and a catch member secured to the window frame.

But in order that the invention may be clearly understood reference will now be made to the drawings which accompany and form part of this complete specification and in which Figure 1 is a perspective view of a casement window and frame showing the improved stay in position.

Figure 2 is a front elevation.

Figure 3 is a plan.

The arm 8 is loosely pivoted at one end to the bracket of which is secured to the window frame 10 by screws 11, and' has at its free end a downwardly projecting tongue 12, an operating knob 13 and laterally projecting lugs 14:. The tongue 12 on end of arm 8 rests in a channel-way 15 which is secured to the lower member 16 of casement window 17 and is adapted to drop into holes 18 therein as the window is swung open. The channel-way 15 has a back rail 19 under which takes one of the laterally projecting lugs 1 to prevent the arm 8 from jumping clear of the channel-way. Two opposing projecting lugs 14 are provided to Specification of Letters Patent.

Patented July 11, 1922.

1921. Serial No. 484,598.

enable the casement stay to be reversed when the window is hinged at the opposite side of frame. A catch member 20 is secured to the window frame, this catch member has its front edge bevelled to permit the tongue 12 to ride easily over it and drop into the locked position when the window is shut.

In operation: Assuming that the window is shut, when it is desired to open it the arm 8 is lifted by means of the handle 13 until the projection 14: meets the rail 19 in which position the tongue 12 is clear of the catch 20 and holes 18 in channel-way 15, the window is then free and can be pushed open to any desired angle. When the arm 8 is released the tongue will drop into one of the holes 18. When it is desired to close the window, the arm is lifted clear of the holes in channel-way and the window is swung into the closed position; on releasing the arm, the tongue 12 falls into position behind the catch 20 and the window is then securely locked.

I claim:

1. An improved stay for casement windows comprising an arm loosely pivoted at one end to a bracket adapted to be secured to the window frame and having at its free end a projecting tongue, a pair of laterally projecting lugs, and an operating handle; a channel-way having a plurality of holes therein and a raised back rail adapted to be secured to the casement window; and a bevelled catch member adapted to be secured to the window frame substantially as and for the purpose herein set out.

2. An improved stay for casement windows comprising an arm loosely pivoted at one end to a bracket adapted to be secured to the window frame and having at its free end a projecting tongue and a laterally projecting lug, in combination with a channelway having a plurality of holes for said tongue and a raised back rail under which takes the laterally projecting lug for preventing the arm jumping clear of the channel-way.

3. An improved stay for casement windows comprising an arm loosely pivoted at one end to a bracket adapted to be secured to said tongue and locking the pivoted arm when the Window is closed. a

In testimony whereof he has afiixecl his signature in presence of two Witnesses.

DONALD DONALD. Witnesses T. O. ALLEN, JR. Gr. GARDNER. 

